Orthopaedics Center - A-Z Index

Ulnar nerve dysfunction

Ulnar nerve dysfunction is a problem with the nerve that travels from the shoulder to the hand. This is called the ulnar nerve. It helps you move your hand and wrist.

Alternative Names

Neuropathy - ulnar nerve; Ulnar nerve palsy

Causes, incidence, and risk factors

Damage to one nerve group, such as the ulnar nerve, is called a mononeuropathy. Mononeuropathy means there is nerve damage to a single nerve. Both local and body-wide disorders may damage just one nerve.

The usual causes of mononeuropathy are:

An illness in the whole body that damages a single nerve

Direct injury to the nerve

Long-term pressure on the nerve

Pressure on the nerve caused by swelling or injury of nearby body structures

Ulnar neuropathy occurs when there is damage to the ulnar nerve, which travels down the arm. The ulnar nerve is near the surface of the body where it crosses the elbow. The damage destroys the nerve covering (myelin
sheath) or part of the nerve (axon). This damage slows or prevents nerve signaling.

Other medications, including gabapentin, phenytoin, carbamazepine, or tricyclic antidepressants such as amitriptyline or duloxetine, to reduce stabbing pains

Corticosteroids injected into the area to reduce swelling and pressure on the nerve

A supportive splint at either the wrist or elbow can help prevent further injury and relieve the symptoms. You may need to wear it all day and night, or only at night.

Surgery to relieve pressure on the nerve may help if the symptoms get worse, or there is proof that part of the nerve is wasting away.

Other treatments may include:

Physical therapy exercises to help maintain muscle strength

Occupational counseling, occupational therapy for changes you can make at work, or retraining

Expectations (prognosis)

If the cause of the dysfunction can be found and successfully treated, there is a good chance of a full recovery. In some cases, there may be partial or complete loss of movement or sensation. Nerve pain may be severe and last for a long period of time.

If pain is severe and continues, see a pain specialist to be sure you have access to all pain treatment options.

Complications

Deformity of the hand

Partial or complete loss of sensation in the hand or fingers

Partial or complete loss of wrist or hand movement

Recurrent or unnoticed injury to the hand

Calling your health care provider

Early diagnosis and treatment increase the chance of curing or controlling symptoms.

Call your health care provider if:

You have symptoms of ulnar nerve dysfunction

You have been injured and you experience persistent tingling, numbness, or pain down your forearm and the 4th and 5th fingers.

Prevention

Avoid prolonged pressure on the elbow or palm. Casts
, splints, and other appliances should always be examined for proper fit.

For help in finding a doctor or health service that suits your needs, call the UPMC Referral Service at 412-647-UPMC (8762) or 1-800-533-UPMC (8762). Select option 1.

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